Soil and conservation Solved chapter One word Ques-1 The uppermost layer of soil is called____. Ans- Topsoil Ques-2 ____is non- porous layer of soil? Ans- Bedrock. Ques-3 Growing trees on a large number is called ___. Ans- Afforestation. Ques-4. Which of the river is known as 'Sorrow of China'? Ans- Yellow river. Ques-5 Which of the layer is rich in minerals? Ans- Subsoil. Very short Ques-1 Name the three layers of soil Ans- Topsoil, subsoil, bedrock Ques-2 What is weathering? Ans- The process of formation of soil is called weathering. Ques-3. What is deforestation? Ans- cutting of forest is known as deforestation. Ques-4. What is terrace farming? Ans- farming is done by cutting the slopes into steps or terrace is called terrace farming. Ques-5. What is soil erosion? Ans- The carrying away of soil by the action of wind and water is known as soil erosion. Short Ques- 1. How does human activities responsible for soil erosion? Ans- human beings are responsible for ...